CVE-2026-98782 (GCVE-0-2026-98782)
Vulnerability from cvelistv5
Published
2026-10-18 15:48
Modified
2026-10-21 12:56
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Fix ovl adaptor platform device leak mtk_drm_probe() creates an OVL adaptor platform device with platform_device_register_data() when the display pipeline requires the OVL adaptor. If a later initialization step fails, the probe error path releases the DRM resources without unregistering the already registered OVL adaptor device. The normal remove path likewise leaves the device registered after the DRM driver is unbound. Keep track of whether the OVL adaptor was successfully registered and unregister it on probe failure. Also recover the platform device from the stored DDP component device and unregister it during normal removal. The issue was identified by a static analysis tool I developed and confirmed by manual review.
References
Impacted products
Vendor Product Version
Linux Linux Version: 0d9eee9118b77e51eeafc5bf4d008fac97035d56
Version: 0d9eee9118b77e51eeafc5bf4d008fac97035d56
Version: 0d9eee9118b77e51eeafc5bf4d008fac97035d56
Version: 0d9eee9118b77e51eeafc5bf4d008fac97035d56
Version: 0d9eee9118b77e51eeafc5bf4d008fac97035d56
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/mediatek/mtk_drm_drv.c"
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          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: Fix ovl adaptor platform device leak\n\nmtk_drm_probe() creates an OVL adaptor platform device with\nplatform_device_register_data() when the display pipeline requires the\nOVL adaptor.\n\nIf a later initialization step fails, the probe error path releases\nthe DRM resources without unregistering the already registered OVL\nadaptor device. The normal remove path likewise leaves the device\nregistered after the DRM driver is unbound.\n\nKeep track of whether the OVL adaptor was successfully registered and\nunregister it on probe failure. Also recover the platform device from\nthe stored DDP component device and unregister it during normal\nremoval.\n\nThe issue was identified by a static analysis tool I developed and\nconfirmed by manual review."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T12:56:56.157Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/03fb1c657028cb9f189b400f3adb46e3ba676aa5"
        },
        {
          "url": "https://git.kernel.org/stable/c/3d85bd738aba61df14dfaf8fe638e2172d8427bf"
        },
        {
          "url": "https://git.kernel.org/stable/c/629458b7e49559593823e351535294db17331be7"
        },
        {
          "url": "https://git.kernel.org/stable/c/8e3a350075b556f2fed4517705935bfee4529fb6"
        },
        {
          "url": "https://git.kernel.org/stable/c/048739be3e9cacae5301b68245668002fe6f0ce5"
        }
      ],
      "title": "drm/mediatek: Fix ovl adaptor platform device leak",
      "x_generator": {
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      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98782",
    "datePublished": "2026-10-18T15:48:19.567Z",
    "dateReserved": "2026-09-25T10:25:14.369Z",
    "dateUpdated": "2026-10-21T12:56:56.157Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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